/* ==========================================================================
   Reading Enhancements — Progress Bar & Table of Contents
   ========================================================================== */

/* ─── Reading Progress Bar ───────────────────────────────────── */
.educenters-progress-bar {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 3px;
	background: transparent;
	z-index: 10000;
	pointer-events: none;
}

.educenters-progress-fill {
	height: 100%;
	width: 0;
	background: var(--educenters-primary-color, #e74c3c);
	transition: width .1s linear;
	will-change: width;
}

/* ─── Table of Contents ──────────────────────────────────────── */
.educenters-toc {
	background: var(--educenters-bg-surface, #f8f9fa);
	border: 1px solid var(--educenters-border, #e5e5e5);
	border-radius: 8px;
	padding: 0;
	margin: 24px 0;
	overflow: hidden;
}

.educenters-toc-toggle {
	display: flex;
	align-items: center;
	justify-content: space-between;
	width: 100%;
	padding: 14px 18px;
	background: none;
	border: none;
	cursor: pointer;
	color: var(--educenters-text, #222);
	font-size: 0.95rem;
	font-weight: 600;
}

.educenters-toc-title {
	display: flex;
	align-items: center;
	gap: 8px;
}

.educenters-toc-chevron {
	transition: transform .25s;
}

.educenters-toc-toggle[aria-expanded="false"] .educenters-toc-chevron {
	transform: rotate(-90deg);
}

.educenters-toc-list-wrap {
	padding: 0 18px 16px;
}

.educenters-toc-list-wrap[hidden] {
	display: none;
}

.educenters-toc-list {
	margin: 0;
	padding: 0 0 0 20px;
	list-style: decimal;
}

.educenters-toc-list li {
	padding: 4px 0;
	font-size: 0.875rem;
	line-height: 1.5;
}

.educenters-toc-list li a {
	color: var(--educenters-text, #333);
	text-decoration: none;
	transition: color .2s;
}

.educenters-toc-list li a:hover,
.educenters-toc-list li a.is-active {
	color: var(--educenters-primary-color, #e74c3c);
}

.educenters-toc-sub {
	padding-left: 16px;
	font-size: 0.83rem;
}

/* ─── Post Views Meta ────────────────────────────────────────── */
.educenters-meta-views {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	font-size: 0.8rem;
	color: var(--educenters-text-muted, #888);
}

/* ─── Dark Mode ──────────────────────────────────────────────── */
[data-theme="dark"] .educenters-toc {
	background: var(--educenters-bg-surface, #1e1e1e);
	border-color: var(--educenters-border, #333);
}

[data-theme="dark"] .educenters-toc-toggle {
	color: var(--educenters-text, #e0e0e0);
}

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
	.educenters-toc {
		margin: 16px 0;
	}

	.educenters-toc-toggle {
		padding: 12px 14px;
		font-size: 0.875rem;
	}
}